Force-pump



(No Model.)

H. M. LOURIE.

FORGE PUMP. No. 884,683. Patented June 19, 1888.

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NITED STATES PATENT OFFICE.

HERBERT M. LOURIE, OF KEOKUK, IOWA.

FORCE-PU M P.

SPECIPICATTON forming part of Letters Patent No. 384,633, dated June 19,1888.

Application filed May 12. 1887. Serial No. 237,941. (No model.)

To aZZ whom, it may concern: I

Be it known that I, HERBERT M. LoUnIn, a citizen of the United States,residing at Keo-, kuk, in the county of Lee and State of Iowa, haveinvented certain new and useful Improve ments in Force-Pumps; and I dohereby declare the following to be a full, clear,"and exact descriptionof the invention, such as will on able others skilled in the art towhich it appertains to make and use the same.

This invention relates to that class of forcepumps in which thepump-cylinder is usually hung down in the well from a standard whichsupports the pump handle and spout above ground, and the piston isprovided with a forcing-plunger about half as large as the pistonhead.

The object of the invention is, first, to provide means whereby theplunger may be tightly packed to prevent leakage around it and yet bereadily removed,in connection with the piston, whenever thepiston-packing requiresattention, and, second, to providemeans wherebythe air-chamber and delivery-pipe are utilized for attaching thecylinder to the pump top or standard.

To this end the invention consists in the con struction and combinationof parts forming a force-pump,hereinafter described and claimed,reference being had to the accompanying drawings, in which-- Figure 1 isa side elevation of a pump according to my invention, part broken away.Fig. 2 is a longitudinal section of the pumpoylinder and attachments ona larger scale. Fig. 3 is an interior view of one outlet to thecylinder,and Fig. 4 is a horizontal section at the line 00 x.

Number 5 represents the cylinder provided with a screw-cap, 6, at itslower end, adapted to receive an inlet-pipe, and with two bosses besideits upper end to receive the discharge pipe 7, and the air-chamber 8.

9 represents the piston, comprising the head 10, the valve 11, the cage12, screw-threaded upon the head, and the leather packing 13, heldbetween the cage and head.

14 represents the plunger, which is in crosssection about one-half thearea of the piston 9, and it is secured thereto by being screw 7threaded directly upon the cage 12 with an This method of securing theair tight fit.

plunger directly to the cage without the in tervention of bolts orsimilar parts is the first novelty of my invention.

15 is the pistou-rod, which may be secured directly to the cage, as hereshown, or to the upper end of the plunger, in case the latter is madesolid instead of tubular, as shown. The cage performs the usual serviceof retaining the valve in working position, connecting the piston headand rod, and allowing free upward escape of water from the valve.

16 represents the usual lower check-valve.

' The second novelty of this invention consists in the arrangement ofparts at the top of the cylinder wherebythe plunger is tightly packedaround to prevent leakage, and yet the whole piston and plunger may bebodily removed after merely unscrewing two nuts without the aid ofpipe-tongs, as follows: The bore of the cylinder is enlarged down to anabrupt shoulder, 17, forming a stuffing-box, into the lowercircumferential corner of which a leather packing-ring, 18, is forced byan iron follower-ring, 19.

20 represents packing of any fibrous mate rial, and 21 is the glandprovided with cars 22, perforated to receive bolts 23, which also passthrough fixed ears on the cylinder to bind the gland down upon thepacking 20, this packing upon the follower 19, the follower upon theleather packing 18, and the packing 18 upon the shoulder 17. As there isno frictional wear upon the packing 18 it may be made a complete ringcapable to retain itself in shape when removed, while if it were fibrousmaterial it would fall apart upon removal and occasion inconvenience,especially when done down in a well. The packing 20 is subject tofrictional wear by every move of the plunger, and it is necessary tomake it of fibrous material in order that alittle new packing at adisconnect the piston-rod 15 from the handlever 24, remove the nuts fromthe two bolts 23, and then draw out the piston and plunger with allparts contained in the stuffing-box. To thus remove all the works of thepump and to replace them requires the use of no tools down in the well,except a single wrench for the two nuts on bolts 23.

In drawing the piston up for-removal its packing ring 13, beingnecessarily of soft material-such as leather or rubber-will spring outinto the openings of the pipes 7 and 8 and catch againt the upper edgesthereof when these openings are made circular and with square edges, asusual; and the third novelty of this invention consistsin making theseopenings 25 into the bore of the cylinder oblong lengthwise thecylinder, so that the same area of outlet may be had with less width ofspace for the packing to spring into, and in chamfering or rounding thecorners 26 at the upper ends of the outlets, so that what little of thering still does projcctinto the opening may be easily wedged back intoplace by the chamfered corners without injury to the packingring. Thelower edges of the openings might also be rounded; but that isunnecessary, be cause the direction of the ring 18 causes it to dragfreely over the said lower edges when being pushed in.

The fourth novel feature consists in adapting the discharge-pipe and theair-chamber to serve as a frame to connect the cylinder with thestandard, and thereby support all the parts within the well. is coredout to form two tubes in one piece. Through the central tube or bore ofthe standard the piston-rod 15 plays freely. The other tube constitutesthe spout 28, which is neatly curved to give free passage to the water.The discharge-pipe 7 is first to be screwed into the lower end of thespout-tube 28. Then the cylinder is to be screwed upon the lower end ofpipe 7. The pipe 8 has a long thread upon its upper end, far onto whicha nut, 80, is first screwed. Then the end is passed up through a freehole in the base-plate 29 of the standard. Then the lower end of thepipe 8 is to be screwed into the cylinder. Now screw the nut 30 upagainst the plate 29. Then screw another nut, 31, down on the pipe tobear on top of the plate. Between the nuts 30 and 31 the plate 29 may beadjusted to bring the parts below into the desired linear relation withthe standard 27, and'thus rigidly bound the pipes 7 and 8 connect thecylinder with the standard and serve as a frame for that purpose. Byscrewing a cap, 32, upon the pipe 8 the same is made an air-chamber forthe cylinder below. This arrangement of an air-chamber has manyadvantages over the common cast airchamber besides that of cheapness,among which are the following: Foreign substances are frequently drawninto a pump and become lodged in the air-chamber, clogging it, anddiflicult to be removed. By unscrewing the cap 32 such matters may beinstantly forced To this end the standard 27 i by the pump not only outof the airchamber, but out of the well, where they cannot furtherinterfere with the pump. This pipe 8 may also be used as a point ofattachment in case it were desirable to pump two streams at once. I haveshown the standard 27 as comprising two tubes webbed together as onepiece; but it is evident that the same result could be produced, thoughnot so simply, by making the spout as a separate pipe from the standard.and it might be secured to the base-plate 29 by check-nuts, like thepipe 8. A portion of the advantages of the construction described wouldbe obtained if the connections 7 and 8 between cylinder and standardwere more solid rods.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The combination of a pump-cylinder having an enlgrged bore at itsupper end terminating in an abrupt shoulder and forming a stuffingbox, apiston having a head fitted to the said bore, a plunger of aboutone-half the cross-sectional area of the piston and secured to thepiston, a packing-ring in one piece of material fitted to the lowercircumferential corner of the said stuffing-box and part way up itssides, a metallic ring fitting loosely around the plunger and closelyabove and within the said packing-ring and conically dished in its upperside, fibrous packing material located around the plunger and above thesaid metallic ring and packing-ring, a gland conically dished on itslower side located above the said fibrous packing and provided withperforated ears, and screw bolts removably connecting the said ears withthe pump-cylinder, substantially as shown and described.

2. The combination of a pump-cylinder, a standard provided with abase-flange, a pipe screwed at one end into the said cylinder andscrewed at the other end into the said flange and rigidly connecting thetwo, a second pipe screwed into the cylinder at the opposite sidethereof to the first-named pipe and screw threaded along its other endand passing freely through a hole in the said flange to open air aboveand serving as an air-chamber to the cylinder below, and two nutsscrewed upon the said second pipe, one above and the other below thesaid base-flange, substantially as shown and described, whereby thesecond pipe may be adjusted to the distance between the cylinder andflange as rigidly fixed by the first pipe, the two pipes thusconstituting a frame to support the cylinderin line with the standard,and whereby the second pipe constitutes an air-chamber which isaccessible at the top of the well.

3. The combination of a pump-cylinder adapted to be located down in awell, a pumpstandard adapted to be located at the top of the well andprovided with a base-flange, a pipe to serve as an air-chamber,adaptedto be screwed down into the said cylinder and provided with a longscrew-thread along its upper IIS end, and-two nuts and a cap screwedupon the. ard, and two screw-nuts, 30 and 31, threaded said long screw,substantially as shown and upon the connection 8, the one below the saiddescribed. portion of the standard and the other above 4. Thecombination of the pump-cylinder 5, it, substantially as shownanddescribed. '5 a pump-standard, 27, the connection 7 ,screwed Intestimony whereof I affix my signature in 15 at one end into thecylinder and at the other presence of two witnesses.

end secured to the standard,the connection 8, HERBERT M. LOURIE. screwedat one end into the cylinder and Witnesses: screw-threaded along itsother end and pass- J. F. SMITH,

:0 ing freely through a portion of the said stand- NANNIE M. SMITH.

